Boatswain's Whistle Knot


A two lead knot that is built up from two interlocking underhand loops to looks like a turk's head knot when it is worked tight.

As a decorative knot to attach a whistle or a knife to a lanyard — to form a toggle or button.

Other names — Sailor's knife lanyard knot, marlingspike lanyard knot, single-strand diamond knot, two strand diamond knot — pipe lanyard knot.

Animated Boatswain's Whistle Knot

  1. Use the left hand to hold the middle of a strand of rope so that the loop of the bight is to the back of the hand and the two leads are between the fingers and hanging down across the palm.
  2. Use the bottom lead, to lay an underhand loop over the standing end of top lead.
  3. Form a bight in the bottom lead so that its running end is under the running end of the top lead.
  4. Weave the running end of the bottom lead over the right edge of the top underhand loop, then under the standing end of the bottom lead, and over the left edge of the top underhand hand loop. This forms two interlocking underhand loops.
  5. Form the next bight by placing the running end of the top lead under the top edge of the top underhand loop.
  6. Reeve the running end of the top lead to the outside of the standing end of the bottom lead and up through the middle of the interlocking underhand knots.
  7. Form the next bight by placing the running end of the bottom lead under the bottom edge of the bottom underhand loop.
  8. Reeve the running end of bottom lead to the outside of the standing end of the bottom lead and up through the middle of the interlocking underhand knots.
  9. Work the knot tight.

Boatswain's Whistle Knot Step By Step


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